package com.luxx.config;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class MyInterceptor1 implements HandlerInterceptor {
    @Override  
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {  
        System.out.println(">>>MyInterceptor1>>>>>>>在请求处理之前进行调用（Controller方法调用之前）");  
  
        return true;// 只有返回true才会继续向下执行，返回false取消当前请求  
    }  
  
    @Override  
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,  
                           ModelAndView modelAndView) throws Exception {
        System.out.println(">>>MyInterceptor1>>>>>>>请求处理之后进行调用，但是在视图被渲染之前（Controller方法调用之后）");  
    }  
  
    @Override  
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)  
            throws Exception {  
        System.out.println(">>>MyInterceptor1>>>>>>>在整个请求结束之后被调用，也就是在DispatcherServlet 渲染了对应的视图之后执行（主要是用于进行资源清理工作）");  
    }  
}